Effects of Ambient Gas Pressure on the Breakup of Sprays in Like-Doublet and Swirl Coaxial Injectors

Abstract

The spray characteristics of swirl coaxial injectors are much influenced by the interaction position of propellants in the recess. Two regimes are found: outer mixing injection and emulsion injection. In the case of single inner oxidizer spray, the spray angle and breakup length decrease as the ambient chamber pressure increases. In the case of coaxial spray with recess, the effects of ambient density on the spray characteristics are not significant compared with those of inner oxidizer.

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Document Details

Document Type
Technical Report
Publication Date
Jun 22, 2004
Accession Number
ADA446475

Entities

People

  • In-seuk Jeung
  • Youngbin Yoon

Organizations

  • Seoul National University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Creep
  • Elements
  • Emulsions
  • Energy Conversion
  • Flow
  • Flow Rate
  • Fuel Injectors
  • High Pressure
  • Image Processing
  • Injectors
  • Mass Flow
  • Measurement
  • Propellants
  • Rocket Engines
  • Rocket Propulsion
  • Rockets

Readers

  • Aerodynamics.
  • Pulsed Power and Plasma Physics.
  • Rocket Propulsion.